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<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2014 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: BaseExprParser.html 842 2015-03-07 18:20:42Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.jsimpledb.parse.expr;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import com.google.common.collect.Iterables;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import com.google.common.collect.Lists;<a name="line.11"></a>
<span class="sourceLineNo">012</span><a name="line.12"></a>
<span class="sourceLineNo">013</span>import java.beans.BeanInfo;<a name="line.13"></a>
<span class="sourceLineNo">014</span>import java.beans.IndexedPropertyDescriptor;<a name="line.14"></a>
<span class="sourceLineNo">015</span>import java.beans.IntrospectionException;<a name="line.15"></a>
<span class="sourceLineNo">016</span>import java.beans.Introspector;<a name="line.16"></a>
<span class="sourceLineNo">017</span>import java.beans.PropertyDescriptor;<a name="line.17"></a>
<span class="sourceLineNo">018</span>import java.lang.reflect.Array;<a name="line.18"></a>
<span class="sourceLineNo">019</span>import java.lang.reflect.Constructor;<a name="line.19"></a>
<span class="sourceLineNo">020</span>import java.lang.reflect.Field;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.lang.reflect.InvocationTargetException;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.lang.reflect.Method;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.lang.reflect.Modifier;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import java.util.ArrayList;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import java.util.List;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import java.util.Map;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import java.util.TreeMap;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import java.util.regex.Matcher;<a name="line.28"></a>
<span class="sourceLineNo">029</span><a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.dellroad.stuff.java.Primitive;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.jsimpledb.JField;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import org.jsimpledb.JObject;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import org.jsimpledb.JSimpleField;<a name="line.33"></a>
<span class="sourceLineNo">034</span>import org.jsimpledb.core.ObjId;<a name="line.34"></a>
<span class="sourceLineNo">035</span>import org.jsimpledb.core.SimpleField;<a name="line.35"></a>
<span class="sourceLineNo">036</span>import org.jsimpledb.parse.ParseContext;<a name="line.36"></a>
<span class="sourceLineNo">037</span>import org.jsimpledb.parse.ParseException;<a name="line.37"></a>
<span class="sourceLineNo">038</span>import org.jsimpledb.parse.ParseSession;<a name="line.38"></a>
<span class="sourceLineNo">039</span>import org.jsimpledb.parse.ParseUtil;<a name="line.39"></a>
<span class="sourceLineNo">040</span>import org.jsimpledb.parse.Parser;<a name="line.40"></a>
<span class="sourceLineNo">041</span>import org.jsimpledb.parse.SpaceParser;<a name="line.41"></a>
<span class="sourceLineNo">042</span>import org.jsimpledb.parse.func.AbstractFunction;<a name="line.42"></a>
<span class="sourceLineNo">043</span>import org.jsimpledb.parse.util.AddSuffixFunction;<a name="line.43"></a>
<span class="sourceLineNo">044</span><a name="line.44"></a>
<span class="sourceLineNo">045</span>/**<a name="line.45"></a>
<span class="sourceLineNo">046</span> * Parses basic Java expressions such as {@link Class} literals, {@code new} expressions, auto-increment expressions,<a name="line.46"></a>
<span class="sourceLineNo">047</span> * array access, field access, method invocation, etc.<a name="line.47"></a>
<span class="sourceLineNo">048</span> *<a name="line.48"></a>
<span class="sourceLineNo">049</span> * &lt;p&gt;<a name="line.49"></a>
<span class="sourceLineNo">050</span> * Includes these extensions:<a name="line.50"></a>
<span class="sourceLineNo">051</span> * &lt;ul&gt;<a name="line.51"></a>
<span class="sourceLineNo">052</span> *  &lt;li&gt;Access to Java bean methods via "property syntax", e.g., {@code foo.name = "fred"} means {@code foo.setName("fred")}&lt;/li&gt;<a name="line.52"></a>
<span class="sourceLineNo">053</span> *  &lt;li&gt;Access database object fields via "property syntax" given an object ID, e.g., &lt;code&gt;@fc21bf6d8930a215.name&lt;/code&gt;&lt;/li&gt;<a name="line.53"></a>
<span class="sourceLineNo">054</span> *  &lt;li&gt;Array syntax for {@link Map} and {@link List} value access, e.g., {@code mymap[key] = value} means<a name="line.54"></a>
<span class="sourceLineNo">055</span> *      {@code mymap.put(key, value)}, and {@code mylist[12] = "abc"} means {@code mylist.set(12, "abc")}&lt;/li&gt;<a name="line.55"></a>
<span class="sourceLineNo">056</span> * &lt;/ul&gt;<a name="line.56"></a>
<span class="sourceLineNo">057</span> */<a name="line.57"></a>
<span class="sourceLineNo">058</span>public class BaseExprParser implements Parser&lt;Node&gt; {<a name="line.58"></a>
<span class="sourceLineNo">059</span><a name="line.59"></a>
<span class="sourceLineNo">060</span>    public static final BaseExprParser INSTANCE = new BaseExprParser();<a name="line.60"></a>
<span class="sourceLineNo">061</span><a name="line.61"></a>
<span class="sourceLineNo">062</span>    private final SpaceParser spaceParser = new SpaceParser();<a name="line.62"></a>
<span class="sourceLineNo">063</span><a name="line.63"></a>
<span class="sourceLineNo">064</span>    @Override<a name="line.64"></a>
<span class="sourceLineNo">065</span>    public Node parse(ParseSession session, ParseContext ctx, boolean complete) {<a name="line.65"></a>
<span class="sourceLineNo">066</span><a name="line.66"></a>
<span class="sourceLineNo">067</span>        // Parse initial atom<a name="line.67"></a>
<span class="sourceLineNo">068</span>        Node node = new AtomParser(<a name="line.68"></a>
<span class="sourceLineNo">069</span>          Iterables.transform(session.getFunctions().keySet(), new AddSuffixFunction("("))).parse(session, ctx, complete);<a name="line.69"></a>
<span class="sourceLineNo">070</span><a name="line.70"></a>
<span class="sourceLineNo">071</span>        // Handle new<a name="line.71"></a>
<span class="sourceLineNo">072</span>        if (node instanceof IdentNode &amp;&amp; ((IdentNode)node).getName().equals("new")) {<a name="line.72"></a>
<span class="sourceLineNo">073</span><a name="line.73"></a>
<span class="sourceLineNo">074</span>            // Get class name (or array type base), which must be a sequence of identifiers connected via dots<a name="line.74"></a>
<span class="sourceLineNo">075</span>            new SpaceParser(true).parse(ctx, complete);<a name="line.75"></a>
<span class="sourceLineNo">076</span>            final Matcher firstMatcher = ctx.tryPattern(IdentNode.NAME_PATTERN);<a name="line.76"></a>
<span class="sourceLineNo">077</span>            if (firstMatcher == null)<a name="line.77"></a>
<span class="sourceLineNo">078</span>                throw new ParseException(ctx, "expected class name");<a name="line.78"></a>
<span class="sourceLineNo">079</span>            String className = firstMatcher.group();<a name="line.79"></a>
<span class="sourceLineNo">080</span>            while (true) {<a name="line.80"></a>
<span class="sourceLineNo">081</span>                final Matcher matcher = ctx.tryPattern("\\s*\\.\\s*(" + IdentNode.NAME_PATTERN + ")");<a name="line.81"></a>
<span class="sourceLineNo">082</span>                if (matcher == null)<a name="line.82"></a>
<span class="sourceLineNo">083</span>                    break;<a name="line.83"></a>
<span class="sourceLineNo">084</span>                className += "." + matcher.group(1);<a name="line.84"></a>
<span class="sourceLineNo">085</span>            }<a name="line.85"></a>
<span class="sourceLineNo">086</span><a name="line.86"></a>
<span class="sourceLineNo">087</span>            // Get array dimensions, if any<a name="line.87"></a>
<span class="sourceLineNo">088</span>            final ArrayList&lt;Node&gt; dims = new ArrayList&lt;&gt;();<a name="line.88"></a>
<span class="sourceLineNo">089</span>            boolean sawNull = false;<a name="line.89"></a>
<span class="sourceLineNo">090</span>            while (true) {<a name="line.90"></a>
<span class="sourceLineNo">091</span>                ctx.skipWhitespace();<a name="line.91"></a>
<span class="sourceLineNo">092</span>                if (!ctx.tryLiteral("["))<a name="line.92"></a>
<span class="sourceLineNo">093</span>                    break;<a name="line.93"></a>
<span class="sourceLineNo">094</span>                ctx.skipWhitespace();<a name="line.94"></a>
<span class="sourceLineNo">095</span>                if (ctx.tryLiteral("]")) {<a name="line.95"></a>
<span class="sourceLineNo">096</span>                    dims.add(null);<a name="line.96"></a>
<span class="sourceLineNo">097</span>                    sawNull = true;<a name="line.97"></a>
<span class="sourceLineNo">098</span>                    continue;<a name="line.98"></a>
<span class="sourceLineNo">099</span>                }<a name="line.99"></a>
<span class="sourceLineNo">100</span>                if (!sawNull) {<a name="line.100"></a>
<span class="sourceLineNo">101</span>                    dims.add(ExprParser.INSTANCE.parse(session, ctx, complete));<a name="line.101"></a>
<span class="sourceLineNo">102</span>                    ctx.skipWhitespace();<a name="line.102"></a>
<span class="sourceLineNo">103</span>                }<a name="line.103"></a>
<span class="sourceLineNo">104</span>                if (!ctx.tryLiteral("]"))<a name="line.104"></a>
<span class="sourceLineNo">105</span>                    throw new ParseException(ctx, "expected `]'").addCompletion("]");<a name="line.105"></a>
<span class="sourceLineNo">106</span>            }<a name="line.106"></a>
<span class="sourceLineNo">107</span><a name="line.107"></a>
<span class="sourceLineNo">108</span>            // Resolve (base) class name<a name="line.108"></a>
<span class="sourceLineNo">109</span>            final Class&lt;?&gt; baseClass;<a name="line.109"></a>
<span class="sourceLineNo">110</span>            final Primitive&lt;?&gt; primitive;<a name="line.110"></a>
<span class="sourceLineNo">111</span>            if (!dims.isEmpty() &amp;&amp; (primitive = Primitive.forName(className)) != null) {<a name="line.111"></a>
<span class="sourceLineNo">112</span>                if (primitive == Primitive.VOID)<a name="line.112"></a>
<span class="sourceLineNo">113</span>                    throw new ParseException(ctx, "illegal instantiation of void array");<a name="line.113"></a>
<span class="sourceLineNo">114</span>                baseClass = primitive.getType();<a name="line.114"></a>
<span class="sourceLineNo">115</span>            } else {<a name="line.115"></a>
<span class="sourceLineNo">116</span>                baseClass = session.resolveClass(className);<a name="line.116"></a>
<span class="sourceLineNo">117</span>                if (baseClass == null)<a name="line.117"></a>
<span class="sourceLineNo">118</span>                    throw new ParseException(ctx, "unknown class `" + className + "'");     // TODO: tab-completions<a name="line.118"></a>
<span class="sourceLineNo">119</span>            }<a name="line.119"></a>
<span class="sourceLineNo">120</span><a name="line.120"></a>
<span class="sourceLineNo">121</span>            // Handle non-array<a name="line.121"></a>
<span class="sourceLineNo">122</span>            if (dims.isEmpty()) {<a name="line.122"></a>
<span class="sourceLineNo">123</span><a name="line.123"></a>
<span class="sourceLineNo">124</span>                // Parse parameters<a name="line.124"></a>
<span class="sourceLineNo">125</span>                if (!ctx.tryLiteral("("))<a name="line.125"></a>
<span class="sourceLineNo">126</span>                    throw new ParseException(ctx, "expected `('").addCompletion("(");<a name="line.126"></a>
<span class="sourceLineNo">127</span>                ctx.skipWhitespace();<a name="line.127"></a>
<span class="sourceLineNo">128</span>                final List&lt;Node&gt; paramNodes = BaseExprParser.parseParams(session, ctx, complete);<a name="line.128"></a>
<span class="sourceLineNo">129</span><a name="line.129"></a>
<span class="sourceLineNo">130</span>                // Return constructor invocation node<a name="line.130"></a>
<span class="sourceLineNo">131</span>                node = new Node() {<a name="line.131"></a>
<span class="sourceLineNo">132</span>                    @Override<a name="line.132"></a>
<span class="sourceLineNo">133</span>                    public Value evaluate(final ParseSession session) {<a name="line.133"></a>
<span class="sourceLineNo">134</span>                        if (baseClass.isInterface())<a name="line.134"></a>
<span class="sourceLineNo">135</span>                            throw new EvalException("invalid instantiation of " + baseClass);<a name="line.135"></a>
<span class="sourceLineNo">136</span>                        final Object[] params = Lists.transform(paramNodes, new com.google.common.base.Function&lt;Node, Object&gt;() {<a name="line.136"></a>
<span class="sourceLineNo">137</span>                            @Override<a name="line.137"></a>
<span class="sourceLineNo">138</span>                            public Object apply(Node param) {<a name="line.138"></a>
<span class="sourceLineNo">139</span>                                return param.evaluate(session).get(session);<a name="line.139"></a>
<span class="sourceLineNo">140</span>                            }<a name="line.140"></a>
<span class="sourceLineNo">141</span>                        }).toArray();<a name="line.141"></a>
<span class="sourceLineNo">142</span>                        for (Constructor&lt;?&gt; constructor : baseClass.getConstructors()) {<a name="line.142"></a>
<span class="sourceLineNo">143</span>                            final Class&lt;?&gt;[] ptypes = constructor.getParameterTypes();<a name="line.143"></a>
<span class="sourceLineNo">144</span>                            if (ptypes.length != params.length)<a name="line.144"></a>
<span class="sourceLineNo">145</span>                                continue;<a name="line.145"></a>
<span class="sourceLineNo">146</span>                            try {<a name="line.146"></a>
<span class="sourceLineNo">147</span>                                return new ConstValue(constructor.newInstance(params));<a name="line.147"></a>
<span class="sourceLineNo">148</span>                            } catch (IllegalArgumentException e) {<a name="line.148"></a>
<span class="sourceLineNo">149</span>                                continue;                               // wrong method, a parameter type didn't match<a name="line.149"></a>
<span class="sourceLineNo">150</span>                            } catch (Exception e) {<a name="line.150"></a>
<span class="sourceLineNo">151</span>                                final Throwable t = e instanceof InvocationTargetException ?<a name="line.151"></a>
<span class="sourceLineNo">152</span>                                  ((InvocationTargetException)e).getTargetException() : e;<a name="line.152"></a>
<span class="sourceLineNo">153</span>                                throw new EvalException("error invoking constructor `" + baseClass.getName() + "()': " + t, t);<a name="line.153"></a>
<span class="sourceLineNo">154</span>                            }<a name="line.154"></a>
<span class="sourceLineNo">155</span>                        }<a name="line.155"></a>
<span class="sourceLineNo">156</span>                        throw new EvalException("no compatible constructor found in " + baseClass);<a name="line.156"></a>
<span class="sourceLineNo">157</span>                    }<a name="line.157"></a>
<span class="sourceLineNo">158</span>                };<a name="line.158"></a>
<span class="sourceLineNo">159</span>            } else {                                        // handle array<a name="line.159"></a>
<span class="sourceLineNo">160</span><a name="line.160"></a>
<span class="sourceLineNo">161</span>                // Check number of dimensions<a name="line.161"></a>
<span class="sourceLineNo">162</span>                if (dims.size() &gt; 255)<a name="line.162"></a>
<span class="sourceLineNo">163</span>                    throw new ParseException(ctx, "too many array dimensions (" + dims.size() + " &gt; 255)");<a name="line.163"></a>
<span class="sourceLineNo">164</span><a name="line.164"></a>
<span class="sourceLineNo">165</span>                // Array literal must be present if and only if no dimensions are given<a name="line.165"></a>
<span class="sourceLineNo">166</span>                final List&lt;?&gt; literal = dims.get(0) == null ?<a name="line.166"></a>
<span class="sourceLineNo">167</span>                  this.parseArrayLiteral(session, ctx, complete, this.getArrayClass(baseClass, dims.size() - 1)) : null;<a name="line.167"></a>
<span class="sourceLineNo">168</span><a name="line.168"></a>
<span class="sourceLineNo">169</span>                // Return array instantiation invocation node<a name="line.169"></a>
<span class="sourceLineNo">170</span>                node = new Node() {<a name="line.170"></a>
<span class="sourceLineNo">171</span>                    @Override<a name="line.171"></a>
<span class="sourceLineNo">172</span>                    public Value evaluate(final ParseSession session) {<a name="line.172"></a>
<span class="sourceLineNo">173</span>                        final Class&lt;?&gt; elemType = BaseExprParser.this.getArrayClass(baseClass, dims.size() - 1);<a name="line.173"></a>
<span class="sourceLineNo">174</span>                        return new ConstValue(literal != null ?<a name="line.174"></a>
<span class="sourceLineNo">175</span>                          this.createLiteral(session, elemType, literal) : this.createEmpty(session, elemType, dims));<a name="line.175"></a>
<span class="sourceLineNo">176</span>                    }<a name="line.176"></a>
<span class="sourceLineNo">177</span><a name="line.177"></a>
<span class="sourceLineNo">178</span>                    private Object createEmpty(ParseSession session, Class&lt;?&gt; elemType, List&lt;Node&gt; dims) {<a name="line.178"></a>
<span class="sourceLineNo">179</span>                        final int length = dims.get(0).evaluate(session).checkIntegral(session, "array creation");<a name="line.179"></a>
<span class="sourceLineNo">180</span>                        final Object array = Array.newInstance(elemType, length);<a name="line.180"></a>
<span class="sourceLineNo">181</span>                        final List&lt;Node&gt; remainingDims = dims.subList(1, dims.size());<a name="line.181"></a>
<span class="sourceLineNo">182</span>                        if (!remainingDims.isEmpty() &amp;&amp; remainingDims.get(0) != null) {<a name="line.182"></a>
<span class="sourceLineNo">183</span>                            for (int i = 0; i &lt; length; i++)<a name="line.183"></a>
<span class="sourceLineNo">184</span>                                Array.set(array, i, this.createEmpty(session, elemType.getComponentType(), remainingDims));<a name="line.184"></a>
<span class="sourceLineNo">185</span>                        }<a name="line.185"></a>
<span class="sourceLineNo">186</span>                        return array;<a name="line.186"></a>
<span class="sourceLineNo">187</span>                    }<a name="line.187"></a>
<span class="sourceLineNo">188</span><a name="line.188"></a>
<span class="sourceLineNo">189</span>                    private Object createLiteral(ParseSession session, Class&lt;?&gt; elemType, List&lt;?&gt; values) {<a name="line.189"></a>
<span class="sourceLineNo">190</span>                        final int length = values.size();<a name="line.190"></a>
<span class="sourceLineNo">191</span>                        final Object array = Array.newInstance(elemType, length);<a name="line.191"></a>
<span class="sourceLineNo">192</span>                        for (int i = 0; i &lt; length; i++) {<a name="line.192"></a>
<span class="sourceLineNo">193</span>                            if (elemType.isArray()) {<a name="line.193"></a>
<span class="sourceLineNo">194</span>                                Array.set(array, i, this.createLiteral(session,<a name="line.194"></a>
<span class="sourceLineNo">195</span>                                  elemType.getComponentType(), (List&lt;?&gt;)values.get(i)));<a name="line.195"></a>
<span class="sourceLineNo">196</span>                            } else {<a name="line.196"></a>
<span class="sourceLineNo">197</span>                                try {<a name="line.197"></a>
<span class="sourceLineNo">198</span>                                    Array.set(array, i, ((Node)values.get(i)).evaluate(session).get(session));<a name="line.198"></a>
<span class="sourceLineNo">199</span>                                } catch (Exception e) {<a name="line.199"></a>
<span class="sourceLineNo">200</span>                                    throw new EvalException("error setting array value: " + e, e);<a name="line.200"></a>
<span class="sourceLineNo">201</span>                                }<a name="line.201"></a>
<span class="sourceLineNo">202</span>                            }<a name="line.202"></a>
<span class="sourceLineNo">203</span>                        }<a name="line.203"></a>
<span class="sourceLineNo">204</span>                        return array;<a name="line.204"></a>
<span class="sourceLineNo">205</span>                    }<a name="line.205"></a>
<span class="sourceLineNo">206</span>                };<a name="line.206"></a>
<span class="sourceLineNo">207</span>            }<a name="line.207"></a>
<span class="sourceLineNo">208</span>        }<a name="line.208"></a>
<span class="sourceLineNo">209</span><a name="line.209"></a>
<span class="sourceLineNo">210</span>        // Repeatedly parse operators (this gives left-to-right association)<a name="line.210"></a>
<span class="sourceLineNo">211</span>        while (true) {<a name="line.211"></a>
<span class="sourceLineNo">212</span><a name="line.212"></a>
<span class="sourceLineNo">213</span>            // Parse operator, if any (one of `[', `.', `(', `++', or `--')<a name="line.213"></a>
<span class="sourceLineNo">214</span>            final Matcher opMatcher = ctx.tryPattern("\\s*(\\[|\\.|\\(|\\+{2}|-{2})");<a name="line.214"></a>
<span class="sourceLineNo">215</span>            if (opMatcher == null)<a name="line.215"></a>
<span class="sourceLineNo">216</span>                return node;<a name="line.216"></a>
<span class="sourceLineNo">217</span>            final String opsym = opMatcher.group(1);<a name="line.217"></a>
<span class="sourceLineNo">218</span>            final int mark = ctx.getIndex();<a name="line.218"></a>
<span class="sourceLineNo">219</span><a name="line.219"></a>
<span class="sourceLineNo">220</span>            // Handle operators<a name="line.220"></a>
<span class="sourceLineNo">221</span>            switch (opsym) {<a name="line.221"></a>
<span class="sourceLineNo">222</span>            case "(":<a name="line.222"></a>
<span class="sourceLineNo">223</span>            {<a name="line.223"></a>
<span class="sourceLineNo">224</span>                // Atom must be an identifier, the name of a global function being invoked<a name="line.224"></a>
<span class="sourceLineNo">225</span>                if (!(node instanceof IdentNode))<a name="line.225"></a>
<span class="sourceLineNo">226</span>                    throw new ParseException(ctx);<a name="line.226"></a>
<span class="sourceLineNo">227</span>                final String functionName = ((IdentNode)node).getName();<a name="line.227"></a>
<span class="sourceLineNo">228</span>                final AbstractFunction function = session.getFunctions().get(functionName);<a name="line.228"></a>
<span class="sourceLineNo">229</span>                if (function == null) {<a name="line.229"></a>
<span class="sourceLineNo">230</span>                    throw new ParseException(ctx, "unknown function `" + functionName + "()'")<a name="line.230"></a>
<span class="sourceLineNo">231</span>                      .addCompletions(ParseUtil.complete(session.getFunctions().keySet(), functionName));<a name="line.231"></a>
<span class="sourceLineNo">232</span>                }<a name="line.232"></a>
<span class="sourceLineNo">233</span><a name="line.233"></a>
<span class="sourceLineNo">234</span>                // Parse function parameters<a name="line.234"></a>
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<span class="sourceLineNo">247</span>            case ".":<a name="line.247"></a>
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<span class="sourceLineNo">310</span>                              + "' is not a static field");<a name="line.310"></a>
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<span class="sourceLineNo">312</span><a name="line.312"></a>
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<span class="sourceLineNo">317</span><a name="line.317"></a>
<span class="sourceLineNo">318</span>                    // Must be object property access<a name="line.318"></a>
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<span class="sourceLineNo">390</span>          base.isPrimitive() ? "" + Primitive.get(base).getLetter() : "L" + base.getName() + ";";<a name="line.390"></a>
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<span class="sourceLineNo">402</span><a name="line.402"></a>
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<span class="sourceLineNo">480</span>            final Method getter = this.makeAccessible(propertyDescriptor.getReadMethod());<a name="line.480"></a>
<span class="sourceLineNo">481</span>            final Method setter = this.makeAccessible(propertyDescriptor.getWriteMethod());<a name="line.481"></a>
<span class="sourceLineNo">482</span>            if (getter != null &amp;&amp; setter != null)<a name="line.482"></a>
<span class="sourceLineNo">483</span>                return new MutableBeanPropertyValue(target, propertyDescriptor.getName(), getter, setter);<a name="line.483"></a>
<span class="sourceLineNo">484</span>            else if (getter != null)<a name="line.484"></a>
<span class="sourceLineNo">485</span>                return new BeanPropertyValue(target, propertyDescriptor.getName(), getter);<a name="line.485"></a>
<span class="sourceLineNo">486</span>        }<a name="line.486"></a>
<span class="sourceLineNo">487</span><a name="line.487"></a>
<span class="sourceLineNo">488</span>        // Try instance field<a name="line.488"></a>
<span class="sourceLineNo">489</span>        /*final*/ Field javaField;<a name="line.489"></a>
<span class="sourceLineNo">490</span>        try {<a name="line.490"></a>
<span class="sourceLineNo">491</span>            javaField = cl.getField(name);<a name="line.491"></a>
<span class="sourceLineNo">492</span>        } catch (NoSuchFieldException e) {<a name="line.492"></a>
<span class="sourceLineNo">493</span>            javaField = null;<a name="line.493"></a>
<span class="sourceLineNo">494</span>        }<a name="line.494"></a>
<span class="sourceLineNo">495</span>        if (javaField != null)<a name="line.495"></a>
<span class="sourceLineNo">496</span>            return new ObjectFieldValue(target, javaField);<a name="line.496"></a>
<span class="sourceLineNo">497</span><a name="line.497"></a>
<span class="sourceLineNo">498</span>        // Try array.length<a name="line.498"></a>
<span class="sourceLineNo">499</span>        if (target.getClass().isArray() &amp;&amp; name.equals("length"))<a name="line.499"></a>
<span class="sourceLineNo">500</span>            return new ConstValue(Array.getLength(target));<a name="line.500"></a>
<span class="sourceLineNo">501</span><a name="line.501"></a>
<span class="sourceLineNo">502</span>        // Not found<a name="line.502"></a>
<span class="sourceLineNo">503</span>        throw new EvalException("property `" + name + "' not found in " + cl);<a name="line.503"></a>
<span class="sourceLineNo">504</span>    }<a name="line.504"></a>
<span class="sourceLineNo">505</span><a name="line.505"></a>
<span class="sourceLineNo">506</span>    // Workaround the problem where non-public class C implements public method M of interface I.<a name="line.506"></a>
<span class="sourceLineNo">507</span>    // In that case, invoking method C.M results in IllegalAccessException; instead, you have to invoke I.M.<a name="line.507"></a>
<span class="sourceLineNo">508</span>    private Method makeAccessible(Method method) {<a name="line.508"></a>
<span class="sourceLineNo">509</span>        if (method == null)<a name="line.509"></a>
<span class="sourceLineNo">510</span>            return null;<a name="line.510"></a>
<span class="sourceLineNo">511</span>        Class&lt;?&gt; cl = method.getDeclaringClass();<a name="line.511"></a>
<span class="sourceLineNo">512</span>        if ((cl.getModifiers() &amp; Modifier.PUBLIC) != 0)<a name="line.512"></a>
<span class="sourceLineNo">513</span>            return method;<a name="line.513"></a>
<span class="sourceLineNo">514</span>        do {<a name="line.514"></a>
<span class="sourceLineNo">515</span>            for (Class&lt;?&gt; iface : cl.getInterfaces()) {<a name="line.515"></a>
<span class="sourceLineNo">516</span>                try {<a name="line.516"></a>
<span class="sourceLineNo">517</span>                    return iface.getMethod(method.getName(), method.getParameterTypes());<a name="line.517"></a>
<span class="sourceLineNo">518</span>                } catch (NoSuchMethodException e) {<a name="line.518"></a>
<span class="sourceLineNo">519</span>                    continue;<a name="line.519"></a>
<span class="sourceLineNo">520</span>                }<a name="line.520"></a>
<span class="sourceLineNo">521</span>            }<a name="line.521"></a>
<span class="sourceLineNo">522</span>        } while ((cl = cl.getSuperclass()) != null);<a name="line.522"></a>
<span class="sourceLineNo">523</span>        return null;<a name="line.523"></a>
<span class="sourceLineNo">524</span>    }<a name="line.524"></a>
<span class="sourceLineNo">525</span><a name="line.525"></a>
<span class="sourceLineNo">526</span>    private Node createPostcrementNode(final String operation, final Node node, final boolean increment) {<a name="line.526"></a>
<span class="sourceLineNo">527</span>        return new Node() {<a name="line.527"></a>
<span class="sourceLineNo">528</span>            @Override<a name="line.528"></a>
<span class="sourceLineNo">529</span>            public Value evaluate(ParseSession session) {<a name="line.529"></a>
<span class="sourceLineNo">530</span>                return node.evaluate(session).xxcrement(session, "post-" + operation, increment);<a name="line.530"></a>
<span class="sourceLineNo">531</span>            }<a name="line.531"></a>
<span class="sourceLineNo">532</span>        };<a name="line.532"></a>
<span class="sourceLineNo">533</span>    }<a name="line.533"></a>
<span class="sourceLineNo">534</span>}<a name="line.534"></a>
<span class="sourceLineNo">535</span><a name="line.535"></a>




























































</pre>
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